Helpful Hints: Check your tire pressure regularly (Table 4.2). High or low pressure will cause premature tire wear and poor vehicle handling and stability.
We recommend using a foot pump with a built-in pressure gauge.
To ensure that the tires wear evenly, rotate the wheels every 15,000 km in accordance with the diagram in Fig. 4.1.
In addition, balance the wheels and check the front wheel alignment angles every 30,000 km. To do this, contact a specialized workshop.
Note: There is a sticker on the B-pillar in the driver's door opening that indicates the recommended tire pressure for different vehicle loads.
Warnings: All wheel repair work should be carried out in specialized workshops. Check that the wheel is balanced after repair.
Operating tires with worn treads can lead to an accident.
1. Carefully inspect the tires and wheel rims. Make sure there are no cuts, cracks, delamination of the tires that expose the cord, or foreign objects stuck in the rubber. If the cuts reach the cord, the steel cord will corrode from penetrating moisture. Check for dents and cracks on the edges of the wheel rims.
2. Unscrew the cap from the valve...
3. ...and remove the cap.
4. Check the air pressure in the tire. To do this, use a pump with a built-in pressure gauge. Connect the pump hose to the valve and check the pressure.
5. If the pressure is less than required, add air, monitoring the pressure on the pressure gauge.
6. If the pressure is higher than required, press the special cap projection with the key onto the valve tip and release air from the tire. Measure the pressure with a pressure gauge. Repeat these operations until the pressure is normal.
7. If you notice that the air pressure in your tires is constantly dropping; try to tighten the valve valve more tightly using a cap and a key.
Note: This is what the protective cap A looks like with the key for tightening the valve core B.
Warning: To avoid contamination of the valve stems, do not operate the vehicle without the protective caps. If the caps have been lost, be sure to install new ones.
8. To check the valve for leaks, wet the valve opening. If bubbles of escaping air appear.
9. Replace the valve core by unscrewing the faulty one using a cap with a key.
10. Measure the remaining tread depth with a caliper. If the tread depth is 1.6 mm or less, replace the tire.
11. If you don't have a caliper at hand, you can check the tread depth visually using the tire wear indicators in the form of solid transverse stripes on the tread.
Note: The locations of the indicators are marked on the sidewall of the tire with a triangle...
...or the letters "TWI".
12. Check the tightness of the wheel nuts and, if necessary, tighten them to a torque of 90-120 N·m.
13. Tighten the wheel nuts gradually in a crisscross pattern.
[The original article can be found on the resource «CHEVYMAN.RU»]